Improvement in shutter fastenings



UNITED STATES PATENT OFFICE.

l JAMES r. BUSH, or BOSTON, MASSACHUSETTS.

4IMPROVEMENT IN SHUTTER-FASTENINGS.

Specification forming part of Letters Patent No. 143,805, dated October 2l, 1873; application filed August 18, 1873.

To all whom it may concern:

Be it known that I, JAMES I. BUSH, of Boston, of the county of Suliolk and State of Massachusetts, have invented a new and useful Improvement in Blindor Shutter Fastenings; and do hereby declare the same to be fully dei scribed in the following specification and represented in the accompanying drawings, of

Figure lisa front elevation of a windowf'rame and blind provided with my invention, the blind'being shown as open. Fig. 2 is a side view of the gravitating latch of such blind. Fig. 3 is a side view of the front catch, and Fig. Il a side view ol' the back catch, of the blind.

In carrying out my invention I so arrange and combine a chain with the window-frame, the blind, the gravit-ating latch, and the fore and back catches of such latch, as not only to enable, by a pull on the chain, the latch, when the blind is closed, to be thrown out of engagement with the fore catch, but when the blind is open to unlatch it'and move the blind so as to close it.

In Fig. l of the drawings, A denotes the blind as open; B, the window-frame; C, the gravitating-lever latch, pivoted within the blind; D, the fore catch, iixed on the window- Sill; and E, the back catch, fixed in the building, all being arranged and made as shown. To the lesser arm of the gravitating-lever latch C, I affix one end of a chain, F, such chain being suspendedirom a pin or knob, e, or other proper device, iixed in the window-frame at the inner edge thereof. The lower end of the elbow-lever catch C has in it a slot or recess, G, to receive a stop-plate, H, arranged On and iiXed to the lower edge of the blind or shutter.

This stopplate and the prongs of the end Oi'V i the catch C answer as stops to limit the upward and downward movements of the catchlever.

Then the blind is open and latched back against the side of the building, by taking hold ofthe chain and pulling on it a person may not only move the latch so as to disengage it from the back catch, but pull the blind around so as to close it and latch it to the fore catch fixed in the window-sill, thereby saving all necessity of reaching out ofthe window and taking hold of the latch in order to effect the unlatching of it and the closing of the blind.

The elbow-lever C, provided with the operative chain F, and pivoted within a recess in the lower stile or part of the blind, and having a slot, G, in its lower end, in combinationv with the stop-plate H and the two catches l) E, arranged in manner as specified, all being to operate as explained.

JAMES P. BUSH.

Vitnesses:

It. H. EDDY, J. lt. SNOW. 

